I have been running a model this morning on my Mac. I realised when I got to uni that I had not properly saved the output so ran the same model on the university computer that runs Windows 7 (with service pack 1). When I run this model and any other, I now get this warning:
fit2.3<-sem(mdl2.3, data=final.data, estimator = "MLR", missing= "fiml", method="satorra.bentler.2010")
Error in lavaan::lavaan(model = mdl2.3, data = final.data, estimator = "MLR", : lavaan ERROR: unknown argument `method'
I have updated my version of R and Lavaan on my university computer to see if this would rectify the situation but it has not. The models run fine on iOS. Has anyone else experienced this and is there a workaround/solution.